/*
* Copyright 2015-2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.hawkular.alerts.rest;
import static javax.ws.rs.core.MediaType.APPLICATION_JSON;
import java.util.HashMap;
import java.util.Map;
import javax.ejb.EJB;
import javax.inject.Inject;
import javax.servlet.ServletContext;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import org.hawkular.alerts.api.services.StatusService;
import org.hawkular.jaxrs.filter.tenant.TenantRequired;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
/**
* REST endpoint for status
*
* @author Jay Shaughnessy
* @author Lucas Ponce
*/
@Path("/status")
@Api(value = "/status", description = "Status of Alerting Service")
@TenantRequired(false)
public class StatusHandler {
private static final String STATUS = "status";
private static final String STARTED = "STARTED";
private static final String FAILED = "FAILED";
private static final String DISTRIBUTED = "distributed";
@EJB
StatusService statusService;
@Inject
ManifestUtil manifestUtil;
@GET
@Path("/")
@Produces(APPLICATION_JSON)
@ApiOperation(value = "Get status info of Alerting Service.",
notes = "Status fields:" +
" + \n" +
"{ + \n" +
"\"status\":\"<STARTED>|<FAILED>\", + \n" +
"\"Implementation-Version\":\"<Version>\", + \n" +
"\"Built-From-Git-SHA1\":\"<Git-SHA1>\", + \n" +
"\"distributed\":\"<true|false>\", + \n" +
"\"members\":\"<comma list of nodes IDs>\" + \n" +
"}",
response = String.class, responseContainer = "Map")
public Response status(@Context ServletContext servletContext) {
Map<String, String> status = new HashMap<>();
status.putAll(manifestUtil.getFrom(servletContext));
try {
if (statusService.isStarted()) {
status.put(STATUS, STARTED);
} else {
status.put(STATUS, FAILED);
}
boolean distributed = statusService.isDistributed();
status.put(DISTRIBUTED, Boolean.toString(distributed));
if (distributed) {
status.putAll(statusService.getDistributedStatus());
}
} catch (Exception e) {
status.put(STATUS, FAILED);
}
return ResponseUtil.ok(status);
}
}